Type-writing machine



D. T. GLACKIN.

TYPE WRH'ING MACHINE.

APPLICATION FILED 050.22.1911.

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TYPE WRITING MACHINE. APPLICATION FILED 020.22.1917.

Patented Oct. 21, 1919.

2 SHEETSSHEET 2.

WOW a x UNITED STATES PATENT OFFICE.

DANIEL T. GLACKIN, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Oct. 21, 1919.

Application filed December 22, 1917. Serial No. 208,400.

T 0 all whom it may concern:

Be it known that I, DANIEL T. GLAoKIN, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Type-Kiting Machines, of which the following is a specification.

This invention relates to typewriting machines of the class in which the cylindrical platen, around which the work is fed is displaceable in order to straighten out the work, so that the carbon sheets which are interleaved between the plies of work may be pulled back relatively to the work, as set forth in the patent to Wernery & Smith, No. 1,132,055, dated March 16, 1915.

The object is to provide improved means for controlling a record sheet for receiving carbon duplicates of items that are typed upon a succession of forms, these forms being repeated along a web, which is usually of the fan-fold type, and the carbons being inserted between the folds of the web and also between the inner ply and the record sheet. The latter is known as a condensed record sheet, because the items appear thereon in close succession; a single page, therefore, containing the copies of items upon a large number of forms or pages of the web. 4

In said WVernery & Smith machine, the platen is mounted upon a hinged frame, whereby it is connected to the typewriter carriage, the hinge permitting the lifting of the platen sufliciently to enable the web to be straightened out for pulling the carbons backwardly, to reset them preparatory to the typing of the neXt form. During the typing operation, this hinged platen frame is held down in working position by means of a latch.

According to my improvements, at one step in the operation of displacing the platen upwardly, a device is brought into use which clips the record sheet to the platen, so as to hold said sheets stationary during the subsequent operations of (1) pulling forward the main web preparatory to typing upon a new form or page thereon, and (2) the retraction of the carbons; all of the carbons being attached to a carbon carriage which may be set back by the operative. Upon restoring the platen to normal position, the condensed record sheet becomes released from the clips, so that said sheet may feed around the platen line by line, together with the fan-fold web, as usual.

Other features and advantages will here inafter appear.

In the accompanying drawings,

Figure 1 is a perspective view of part of an Underwood typewriting machine, showing my invention applied thereto.

Fig. 2 is a fragmentary front view, show ing the condensed record clip and the latch for the platen frame, which preferably 0perates said clip.

Fig. 3 is a sectional side view; the section being taken. immediately inside of the right-hand side of the swinging platen frame; the latch being shown in dotted lines in the position to which it may be moved to release the platen frame for swinging to its abnormal position, for the purpose of adjusting the work-sheets. This figure also shows the clip for the record sheet in its ineffective position.

Fig. 1 is a similar diagrammatic view. The latch has been moved to release the platen frame, so that the platen may be swung to the abnormal, dotted-line position. The clip is also shown as holding the record sheet against the platen.

Fig. 5 is a view similar'to Fig. 4, show ing the platen swung to its upper or abnormal position.

Fig. 6 is a view similar to Fig. 4, showing the platen returning from the Fig. 5 position to'its normal oosition, and the clip as being rendered ine ective.

Preferably the operation of clipping the condensed record sheet 10 is performed at the initial part of the operation of raising the platen 11, so that there will be no liability of said sheet becoming disarranged during the remainder of the platen-lifting operation. For this reason, I utilize a latch 12,'which usually holds down the platen frame 13, and I place upon this latch 12 a device which may be in the form of a pin or projection 14;, normally holding a paperclip 15 in released condition, Fig. 3. hen

the latch 12 is pressed back to release the platen-carrying hinged frame, said clip becomes released from the control of the latch, and is immediately caused by a spring 20 to press the record sheet against the platen, Fig. 4.

The clip may be in form of a cross bar or shaft extending along the top of the platen under a paper-shelf 21, which is mounted at the delivery side thereof. The shaft 15 is provided with a flattened or cutaway face 22 normally clear of the platen to permit the insertion of the condensed record sheet 10; the spring tending to rock said shaft so that one end of said clip face will drop down and clip the sheet to the platen. The tension of the springs 20 may be adjusted by means of screws 23 threaded into cups 24 on the platen frame, one at each end of the shaft; said springs 20 bearing upon tongues 25 which extend from the shaft.

The movement of the shaft 15 is controlled by an arm 17, mounted thereon, which normally bears against the pin 14, which, as aforesaid, is fixed upon said latch, and in this condition, a clearance is left between the'clip shaft and the platen, as at Fig. 3. When the latch 12 is thrown back (by means of a handle 18) to release the rod 15, which is pivotally supported on the hinged platen-carrying frame, said pin 14 moves out of the path of said arm 17, or, in other words, releases the same, so that the springs 20 may rock the shaft 15 about its axis so that its rear edge bites or clips the paper, (Fig. 4).

It will be noted that the pressing back of the latch 12 moves it clear of the studs 19 on the platen frame, whereby the latch is released for an upward swing.

After the release of the platen frame, it is swung about a shaft 26, supported on a carriage frame 27, from the Fig. 4 position to the position indicated in Fig. 5, preparatory to advancing the fan-fold web 28 and re tracting the carbons. During this swinging movement of the frame 13, the clip 15 re mains pressed against the record sheet 10, so that the same cannot become disarranged upon the platen, and this condition persists during the pulling forward and other adj ustment and manipulation of the fan fold web 23; and this clamped condition of the record sheet 10 is also maintained during the subsequent descent of the platen frame to normal position.

At the last portion of this downward movement of the platen frame, the stud or pin 19 thereon engages a nose 30 of the latch 12 to cam it backwardly from the position (Fig. 5) to which it was snapped forward by its spring 31 when the platen frame was swung up. During such descent of the hinged platen-carrying frame 13, the controlling arm 17 of the paper-clip 15 reengages the pin 14 upon the latch 12 (Fig. 6), said pin having been again brought into the path of said arm by reason of the downward movement of the platen frame and the forward snap of the latch after the stud 19 on the platen frame had cleared the same in swinging up. The arm 17, therefore, is arrested by said pin 14, and during the completion of the descent of the platen frame 13, there is caused a relative movement between the clip shaft 15 and the platen 11, so that said shaft is brought to sheet-releasing position, as at Fig. 3. The pin 14 retains its control of the arm 17 during the movements of the latch, the first of which is effected by the finger-piece 18 to release the platen frame, and the second of which is effected by the platen frame when the latter is swung back to normal position, when the latch again gains control of the platen frame to hold it down. Thus, the clipping and releasing of the condensed record sheet are effected by the manipulation of the machine to raise and lower the platen frame.

It will be seen that the condensed record sheet 10 may be readily inserted from either the front or rear of the platen, passing between the same and a shaft 32, which is usually provided with a handle 33 for bringing a knife edge 34 into and out of working position, said knife edge 34 being employed for tearing off the form or page of that portion of the web which has been typed. Preferably, the condensed record sheet is inserted while the platen and the work is straightened out, as at Fig. 5, since at that time the condensed record sheet may be readily slipped between the platen and the web, the platen now being free of feed rolls 35 and 36, which run upon the bottom thereof when the platen is down in working position. The condensed record sheet is passed between the platen and the knifecontrolling shaft 32 and between the platen and the clip shaft 15, and thereafter is fed line by line by the feed rolls together with the web.

The platen 11, as in said Wernery & Smith patent, although raised from the main carriage 27 and away from the usual line-space wheel 37, still remains rotatably connected to and controlled by said line-space wheel 37 and its detent 38 this connection comprising a train of gears including a gear 39 fixed to the line-space stub-shaft 40, and another gear 41 fixed to the platen 11, said gears 39 and 41 being connected by a double or broad pinion 42. It will. be understood that if the linespace wheel 37 were to remain stationary, there would result a slight relative rotation or creeping of the platen upon its own axis during the lifting of the hinged platen frame, and this creeping, due to the relative movements of the gears, would have the result of displacing the condensed record sheet relatively to the platen, orelse said sheet would have to slip relatively to the clip, which is undesirable. Therefore, as part of the means for controlling the condensed reoord sheet, I employ the usual release cam 43, operated by a handle 44 for engaging a pin 45 upon the detent 38 to throw the same out of engagement with the line-space wheel to permit the latter to rotate idly during the lifting and depressing operation.

By an inspection of Fig. 1, it will be seen that there is provided a carbon &6 between the fan-fold web 28 and the record sheet 10. This carbon is preferably secured to a blade 47 secured to a carbon carriage 48, which is adapted to move back and forth on rails 49. The carbons 29 for the fan-fold web 28 are secured to blades 50 similar to the blade 47 also secured to the carriage 48, and extending between the folds of the fan-fold web, as described in said \Vernery & Smith patent. A handle 51, extending from the carbon carriage 48, is provided for retracting or shifting the carbons 29 and also the carbon 4:6 to untyped portions of the fan-fold web and the record sheet, when the platen is in its upper and abnormal position. Hence, the clip 15 is effective to hold the record sheet and prevent it from being displaced when its carbon 46 is being shifted relatively thereto.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used Without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a platen and means for feeding work-sheets thereabout, of means for displacing said platen, relatively to said feeding means, to admit a free adjustment of certain of said work-sheets, and a clamp for holding one of said work-sheets in fixed relation with said platen during the adjustment of others.

2. In a typewriting machine, the combination with a platen and means for feeding work-sheets thereabout, of means for displacing said platen, relatively to said feeding means, to admit a free adjustment of certain of said work-sheets, and a clamp for holding one of said work-sheets in fixed relation with said platen during the adjustment of others, said clamp being commensurate in length with said platen so as to hold a work-sheet of any width at any point of its length. I

3. In a typewriting machine, the combination with a platen and means for guiding and feeding work-sheets thereabout, of means for freeing said sheets from their guiding and feeding means to admit free ad justment of certain of said sheets, and means for clamping one of said sheets to said platen during the adjustment of others.

4. In a typewriting machine, the combination with a platen and means for feeding Work-sheets thereabout, of a paper-shelf mounted at the delivery side of said platen, the lower edge of said shelf serving as means for separating one of said work-sheets from the others after passing the printing line, normally ineffective means for clamping said separated sheet to said platen, means for displacing said platen and paper-shelf, relatively to said feeding means, to admit free adjustment of the remaining sheets, and means for causing said clamping means to be rendered and maintained effective while said platen and shelf are in their shifted positions.

5. In a typewriting machine, the combination with a platen and means for feed ing a plurality of worksheets thereabout, of normally ineffective means capable of being rendered effective to clamp one of said worksheets to said platen, line-space mechanism for said platen including means normally tending to hold said platen in any line-space position, means for shifting said platen, relatively to said feeding means, to a position admitting free adjustment of another of said work-sheets, means for causin said clamping means to be rendered elf ctive when said platen is so shifted, gearing between said line-space mechanism and said platen including means for maintaining cooperative relation therebetween during the shifting of said platen, and means for rendering the platen-holding means of said line-space mechanism ineffective during a shifting of said platen,-so that, by freeing said line-space mechanism, said platen may be held at rest during the shifting. movement by said clamping means.

6. In a typewriting machine, the combination with a platen and means for feeding a plurality of work-sheets thereabout, of normally ineffective means capable of being rendered effective to clamp one of said worksheets to said platen, means for shifting said platen, relatively to said feeding means, to a position admitting free adjustment of another of said worksheets, and means for causing said clamping means to be rendered effective when said platen is so shifted, and to be restored to its ineffective condition when said platen is returned to normal position.

7. In a typewriting machine, the combination with a platen and means for feeding a plurality of work-sheets and an interleaved carbon sheet thereabout, of a de vice for adjusting the position of said carbon sheet with respect to said work-sheets, normally ineffective means capable of being rendered effective to clamp one of said worksheets to said platen, means for shifting said platen, relatively to said feeding means, to a position admitting the free adjustment of another of said worksheets and the re-positioning of said carbon sheet by its adjusting device, and means for causing said clamping means to be rendered effective when said platen is so shifted, and to be restored to its ineffective condition when said platen is returned to normal position.

8. In a typewriting machine, the combination with a platen and means for feed ing a plurality of work-sheets and interleaved carbon sheets thereabout, of means for adjusting said carbon sheets with respect to said work-sheets, normally ineffective means capable of being rendered effective to clamp one of said work-sheets to said platen, means for shifting said platen, relatively to said feeding means, to a position admitting the free adjustment of another of said work-sheets and the re-positioning of said carbon sheets by their adjusting means, and means for causing said clamping means to be rendered effective when said platen is so shifted, and to be restored to ineffective condition when said platen is returned to normal position.

9. In a typewriting machine, the combination with a platen and means for feed ing a record sheet and a fan-fold web thereabout, of normally ineffective means capable of being rendered effective to clamp said record sheet to said platen, means for shifting said platen, relatively to said feeding means, to a position admitting the adjustment of said web, means for causing said clamping means to be rendered effective to prevent relative movement between said record sheet and said platen during the adjustment of said web, and to be restored to ineffective condition when said platen is returned to normal position.

10. In a typewriting machine, the combination with a platen and means for feeding a record sheet, a fan-fold web and interleaved carbon sheets thereabout, of means for adjusting said carbon sheets relatively to said record sheet and said web, normally ineffective means capable of being rendered effective to clamp said record sheet to said platen, means for shifting said platen, relatively to said feeding means, to a position admitting the free adjustment of said web and the re-positioning of said carbon sheets, and means for causing said clamping means to be rendered effective to prevent relative movement between said record sheet and said platen during the adjustment and repositioning of said sheets, and for causing the same to be restored to its ineffective condition when said platen is returned to its normal position.

11. In a typewriting machine, the combination with a revoluble platen displaceable to enable webs to be straightened out for relative adjustment between the webs and interleaved carbons, of a clip to hold a record sheet against the platen, said clip normally ineffective, and means dependent upon the manipulation of the machine when displacing the platen, for rendering said clip effective.

12. In a typewriting machine, the combination with a revoluble platen displaceable to enable webs to be straightened out for relative adjustment between the webs and interleaved carbons, of a clip normally ineffective, but movable to position to re tain a record sheet against the platen.

13. In a typewriting machine, the combination with a revoluble platen displaceable to enable Webs to be straightened out for relative adjustment between the webs and interleaved carbons, of a clip normally ineffective, but movable to position to retain a record sheet against the platen, said clip mounted between the delivery and introductory sides of the platen.

14:. In a typewriting machine, the com bination with a revoluble platen displaceable to enable webs to be straightened out for relative adjustment between the webs and interleaved carbons, of a clip normally ineffective, but movable to position to retain a record sheet against the platen, a spring tending to move said clip to the platen, means restraining said clip, and means to release said restraining means.

15. In a typewriting machine, the com bination with a revoluble platen displaceable to enable webs to be straightened out for relative adjustment between the webs and interleaved carbons, of a clip normally ineffective, but movable to position to retain a record sheet against the platen, a spring tending to move said clip to the platen, means restraining said clip, and means to release said restraining means, said releasing means comprising a part whose movement also releases the platen for displacement.

16. The combination of a revoluble platen, a frame upon which it is mounted for displacement to permit straightening and relative adjustment of sheets and carbons, and a clip mounted upon said frame to hold a sheet against the platen.

17 The combination of a revoluble platen, a frame upon which it is mounted for displacement to permit straightening and relative adjustment of sheets and carbons, a clip mounted upon said frame to hold a sheet against the platen, a spring normally tending to press said clip against the platen, a releaser for said clip, and means brought into action by the manipulation of said frame to operate said releaser, and permit said clip to press a sheet against the platen.

18'. The combination of a revoluble platen, a frame upon which it is mounted for displacement to permit straightening and relative adjustment of sheets and carbons, a clip mounted upon said frame to hold a sheet against the platen, and means for automatipressing said clip against the platen, and

cally pressing said clip against the platen. means for automatically restoring said clip 10 y). The combination of a revoluble platen, to ineffective position.

a rame upon which it is mounted for displacement to permit straightening and rela- DANIEL GLAOKIN' tive adjustment of sheets and carbons, a clip Witnesses:

mounted upon 'said frame to hold a sheet CHAS. J SoANLoN,

against the platen, means for automatically F. E. SLAVIN.

Uoples of thll patent may be obtained for five cents each, by addressing the Commissioner of ratents, Washington, I). 0. 

